#31374E#31374E

#31374E is a dark, muted blue. Relative luminance 0.039; OKLCH L 34.2% C 0.041 H 272.8°. Best body text is #FFFFFF at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#31374E
RGB	rgb(49, 55, 78)
HSL	hsl(228, 23%, 25%)
HSV	hsv(228, 37%, 31%)
CMYK	cmyk(37.2%, 29.5%, 0%, 69.4%)
CIE-LAB	lab(23.46, 3.96, -14.87)
CIE-LCH	lch(23.46, 15.39, 284.90°)
OKLab	oklab(34.15% 0.002 -0.0413)
OKLCH	oklch(34.15% 0.041 272.8)
XYZ	xyz(4.0076, 3.9353, 7.7547)
Luminance	0.0394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31374E #4E4831

analogous

#31464E #31374E #39314E

triadic

#31374E #4E3137 #374E31

tetradic

#31374E #4E3146 #4E4831 #314E39

square

#31374E #4E3146 #4E4831 #314E39

split-complementary

#31374E #4E3931 #464E31

monochromatic

#0C0D13 #191C28 #31374E #495274 #606C99

Accessibility & contrast

On white

11.75

#31374E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#31374E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31374E

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31374E	#FFFFFF	#000000	##FFFFFF
##31374E	1.00	11.75	1.79	11.75
#FFFFFF	11.75	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#30394F

Deuteranopia (green-blind)

#2E374D

Tritanopia (blue-blind)

#293B3F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #31374e;
/* rgb */ color: rgb(49, 55, 78);
/* oklch */ color: oklch(34.2% 0.041 272.8);

Tailwind

colors: {
  custom: {
    50: '#6a6d7f',
    500: '#31374e',
    950: '#000000',
  },
}

SCSS

$custom: #31374e;
$custom-light: #6a6d7f;
$custom-dark: #000000;

JSON

{
  "hex": "#31374e",
  "rgb": {
    "r": 49,
    "g": 55,
    "b": 78
  },
  "hsl": {
    "h": 227.586,
    "s": 22.835,
    "l": 24.902
  },
  "oklch": {
    "l": 0.34154,
    "c": 0.04132,
    "h": 272.8
  },
  "luminance": 0.03935
}

Semantic roles & 50–950 ramp

primary

#31374E

secondary

#7F785C

accent

#AD68BF

background

#F6F6F7

surface

#EBEBEE

border

#C6C6C9

text

#06070A

muted

#7A7A7C

Preview Lab

Preview with #31374E

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →